Coldfusion 8 and Flex 2

I am new to Coldfusion, but I have been using Flex 2 with .Net. I am looking to
try out Coldfusion 8. I have downloaded and installed the full blown developer
edition and configured the server. It is running at http://127.0.0.1:8500.

Within the Adobe Coldfusion Administrator site under Flex Integration. I checked
the "Enable Remote Adobe LifeCycle Data Management access" and added the local IP
address of 127.0.0.1.

I started a new Flex 2 project and chose Flex Data Services because I read that
is now integrated with Coldfusion 8. The next screen asks for a root folder and
it must contain WEB-INF/flex. So I browsed out to
c:\ColdFusion8\wwwroot\WEB-INF\flex and tried to validate the path but it keeps
saying "Invalid server root. Server root must contain a WEB-INF/flex folder."

So I need some help because I can't even start a project. Once again, I am very
new to Condfusion 8 and any help would be appreciated. Thanks, Michael